Resumen

PULIDO-SUAREZ, Néstor Julián; BORRAS-SANDOVAL, Luis Miguel  y  RODRIGUEZ-MOLANO, Carlos Eduardo. Development of an energy-protein for animal food based crop residues pear (Pyrus communis). Corpoica cienc. tecnol. agropecu. [online]. 2016, vol.17, n.1, pp.7-16. ISSN 0122-8706.

Pear (Pyrus communis) is a fruit from the species of deciduous, widely consumed worldwide for its high quality energy. However, pear itself does not provide the amount of protein required for cattle feeding, so alternatives to improve its nutritional quality have been studied. On these grounds, the objective of this study was to evaluate the parameters of solid state fermentation, and compositional energy value of a protein food based on pears (Pyrus communis) with apparent physical damage. A completely random design was used to evaluate three treatments; these correspond to percentages of inclusion of calcium carbonate (0.25, 0.50, 0.75) formulation based on already established (40 % pear, 25 % rice flour, 25 % wheat bran and 10% urea), the parameters evaluated were: pH, ashes (CZ), crude protein (CP) and crude fiber (CF), and they were recorded at 0, 24, 48 and 72 hours. As a result, it was found that the pH dropped gradually for each treatment and at each sampling period; however, there were no significant differences. The lower value at the end of the process is recorded T2 (0.25) with 4.66, followed by T3 (0.50) with 4.50, the ash reached values of up to 6 % with T3, and T2 (0.50) reached the highest percentages in fiber and crude protein. Finally, decreasing the fermentation variables ensures a food with no presence of undesirable microorganisms and stable over time.

Palabras clave : Cattle; Animal feeding; Solid state fermentation; Microorganisms.

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